Jet suction device for tube spinning



April 2, 1957 E. J. GRISE-r, JR

JET sucTIoN DEVICE Foa TUBE SPINNING Filed March 10. 1953 INVENTORATTORNEY JET SUCTIUN DEVICE FOR TUBE SPINNING Ernest J. Griset, Jr.,Asheville, N. C., assignor to American Enka Corporation, Enka, N. C., acorporation of Delaware Application March 10, 1953, Serial No. 341,528

2 Claims. (Cl. 68-181) The present application is a continuation-in-partof application Serial No. 122,560, led October 20, 1949, now Patent No.2,725,276, dated November 29, 1955.

This invention relates to tube spinning and more particularly to asubassembly of tube spinning apparatus by the use of which both originalinstallations and repairs are greatly facilitated.

The essence of tube spinning is the propulsion of a yarn or threadthrough a tube by a liquid which also effects the desired chemicaltreatment. ln such apparatus as is shown in my said Patent No. 2,725,276the treating tube has an enlarged or flared mouth and a jet of liquid isdischarged into the mouth from a nozzle axially aligned with but spacedfrom the mouth. Between the end of the nozzle and the mouth of thetreating tube a low pressure or suction zone is created and the yarn isdrawn into the zone by the stream of liquid.

From Ithe foregoing brief description it can be readily understood thatthe alignment of the nozzle with the mouth of the treating tube ishighly critical as, indeed, is the spacing of the nozzle from the tubemouth. Since the nozzle and tube are most conveniently made of glass,there exists the problem of supporting the nozzle and tube in correctrelative positions. This problem is further complicated by the need foreasy replacement in case of breakage.

It is of course possible to machine a highly accurate structure forsupporting the nozzle and tube but, in that case ,the original cost perunit is high, and when it is borne in mind that an ordinary two-sidedmachine involves seven tubes per spinning position and one hundred andforty-four positions, it can be seen that the cost factor in aproduction machine is prohibitively high. On the other hand, a separatesupporting member for each nozzle and tube is highly desirable tofacilitate replacement in case of breakage and alignment of the tubesand nozzles before installation into the system.

It is an object of the present invention to achieve the inherentadvantages of a separate support for each nozzle and tube pair at verylow cost while at the same time improving the ease with which thenozzles and tubes may be installed, adjusted and replaced.

Other objects and advantages of this invention will be apparent uponconsideration of the following detailed description of severalembodiments thereof in conjunction with the annexed drawings wherein:

Figure 1 is a View partially in vertical section and partially inelevation through a jet box and illustrating a nozzle and tube spinningsupporting member constructed in accordance with the teachings of thepresent invention;

Figure 2 is a view in vertical section of a jet box containing amodified type of supporting member according to the present invention;and

Figure 3 is a perspective view of the nozzle and jet with a supportingmember such as shown in Figure 2.

Referring now in greater detail to Figure 1 of the drawnited StatesPatent O 2,787,152 `l Piatnenteafd Apr. 2,1957

ings, the numeral 10 `designates a jet box of the type shown in saidPatent No. 2,725,276. In tube spinning, two jet boxes are arranged inspaced relation facing one another. Each box accommodates a number ofassem blies of the type shown in Figure 1 so that the yarn is introducedinto the mouth of a tube which is located in one box, is propelledthrough that tube and is discharged and drawn into the mouth ofanothertube in another box. It continues in this fashion back and forthbetween the boxes until the desired liquid treatment has beenaccomplished. For example,.in Figure 1, which is taken at the middle ofa group of spinning tubes, the yarn moves in the direction of theA arrowthrough tube 11, discharges into deliector 12 and is guided thereby tothe mouth 13 of a tube 14. .When the yarn leaves the tube 14, it willdischarge into a delector in the opposite box of the system from whichit will be returned to the box 10 in another tube running substantiallyparallel to the tube 11. This brief explanation is here inserted toclarify the function of the present invention,` and full details ofoperation of a tube spinning system incorporating the present inventioncan be had by reference to said Patent No. 2,725,276. l

It will be noted that liquid in the tube 14 is supplied from a tube 15which has a nozzle 16 at its end. lThe nozzle 16 is `co-axial with andspaced from the mouth 13 of the tube 14. The space between each nozzleand the respective tube mouth is a low pressure zone into which the yarnis sucked for entrainment by, and treatment with, the liquid issuingfrom the nozzle, such as the nozzle 16. Once the yarn is running in 'thetubes, the detlectors 12 are moved from the broken line to the solidline position. Thus liquid from the tube 11 discharges through a spoutat 17, while any waste liquid, wiped oif the yarn or resulting from theaction of jet 16, is separately discharged through a spout at 18.

With the foregoing background it will be'appreciated that the alignmentof the jet 16 with the mouth 13 is of absolutely critical importance. Amajor misalignment would result in a great deal of splashing andinsufficient liquid velocity in the tube 14, with resulting badpropulsion, :and inadequate liquid treatment.` Since the liquidprojected from the nozzle 16 is necessarily conical in form, the axialspacing between the nozzle and mouth is also critical. In order tomaintain these critical adjustments, a supporting member 19 is `providedto hold the nozzle and mouth in correct relative positions. Thesupporting member 19, which is constructed according to the principlesof the present invention, includes a base portion 20, having upwardlyextending arms 21 A and 22 at its opposite ends. The arm 21 supports anintegral sleeve 23 in alignment with a very much longer integral sleeve24 which is supported by the arm 22. The ysleeve 24 is actually composedof two sections of diierent external diameter; a section to the left, asviewed in Figure l, which is of large diameter, and a section to theright, which is of smaller diameter and which is intended to beencompassed and supported by a part of the box 10. The part of thesleeve 24 which is supported by the box 1t) is designated by character24r in Figure l.

The supporting member 19, including its arms 21 and 22 and the sleeves23 and 24, is cast as an. integral body from a soft metal, such as lead.Preferably, the tubes 14 and 1S are cast in situ with the casting of thesupport ing member 19. In this manner, an excellent glass-tometal sealis obtained and tubes 14 and 15 become securely mounted in thesupporting member 19. The glass tubes are not damaged if a low meltingmetal, such as lead, is used in the casting operation.

The nozzle and tube apertures in the sleeves 23 and 24 are preferably apart of the supporting member as of-the nozzleandmouth. 'Furthermorelead being a met-aly characterized bysoftness vand exceedingly lowelastic'` limit, minor adjustments `are possible without spring back,as-wou'ldbe the casewith materials of higher elastic limit.

l' The-strueturefof the'supporting member 19, involving anelongated-base' portiond 20 -and upstandi'ng arms 21 and 22,1presents'abendable portionvb'oth horizontally andverticallywherebyjbothihorizontal and vertical adjustments are easilymade. Because of the softness of lead theincorporation of lthetubes intothe 'sleeves can be accomplished vwith minory danger of glass breakage.

The portion 24rofthe sleeve 24 `acts `as a support for the` entiremember 19. It need not so function, however, as can be seen by referenceto' Figures 2 and 3 wherein there is shownasupportingA member 25 havinga depending st'em 26 which constitutes the supportbut which is otherwisesimilar to the supporting memberin Figure l. The-member25i1cli1des' arms27 and 28 respectively which support integral-sleeves 29 and 30 which inturn support nozzles 31 and' 32 respectively. Although the jet box 33 ofFigure 2 is dilferent from the jet box 10 shown irr Figure 1,`the boxdifferences do not themselves constitute a partl of 'this'inventiomsince this invention is direc-ted to the supporting member 25 ratherthan the jet box. The details ofV they jet box of Figure 2` aredescribed in application'Serial No. 341,529, tiled March 10, 1953, nowPatent No. 2,724,956, dated November l1, 1955.

VVIt should be noted that the supporting member 25 is quick detachablyremovable from the box-33. To this end the box 33 is'provided'withaseries of sockets at 34, each of` a contour anddepthto receive thelower end of ar stem 26. To remove the supporting member and its tubesit is only 'necessary to pull the member upwardly and then'move'it upand 'to the` right from the Figure 2 position. The long-:sleeve 30 otthe member 25 is not encompassed'byany part of the jetib'ox butrncrelyrests in a saddleat'35.

It nwill be appreciated that by4 supporting a short nozzle anda shorttube lengthin adevice, such as the supportingmemb'er' 19 or 25', itispossible'also to support other tubes` connectediby rubber sleeves to theshort lengths held Vin the member.

' Figure'v 3 illustrates 'thedetails of the supporting membery 25:shownin Figure' 2l and the manner vin which the nozzle of tube 31 and themouth of tube 3?, are held iin axial alignment. 'As previously pointedout, the cast assembly shown in Figure 3 may be quickly inserted into orremoved from a jet box in event of tube breakage.

What is claimed is:

l. A jet suction device for a tube spinning machine comprising a. jetbox, a rst hollow tube having a mouth disposed within said jet box, asecond hollow tube having a nozzle disposed within said jet box incooperative axial alignment with and spaced from the mouth of saidrsttube, a supporting member formed of metal having a low elastic limitfor adjustably mounting said irst and second tubes in said spaced andaligned relationship within said jetv box, arms projecting from the endsof said supporting member,V means deni-ng substantially alignedapertures in said arms for the reception of said first and second tubes,respectively, and mounting means for positioning said supporting memberin said jet box. l

2. A jet suction device for a'tubel spinning machine comprising a jetbox, a deector mounted within said jet box, said deilector beingadaptable for receiving yarn from a source of supply and for changingthe direction of'travel thereof, a'r'st hollow tube having a mouthdisposed within said jet box in alignment with said deflector wherebyyarn emerging from said deiiector may be received by said lirst tube, asecond hollow tube having a nozzle disposed within Jsaid jet box incooperative axial alignment'with andspaced from the mouth of said hrsttube, a supporting member formed of lead for detachably and 'adjustablymounting said rst and second tubes in' said' spacedv 'andaligned'relationshipwithin said box, aims projecting from the ends of saidsupporting member, means defining substantially aligned apertures insaid armsfor the reception of said first and second tubes, respectively,and mounting means for removably positioning said supporting member insaid jet box in a fixed rele,- tionship with respectto said dellector.

References Cited'in the le of this patent UNITED STATES PATENTS 163,531Roake May 18, 1875 871,209 Cotton Nov. 19, 1907 1,168,297 Gibson ian.1S, 1916 1,592,840 Smalley July 20, 1926 1,665,445 Conrad Apr. 10, 19281,893,724 l Zinkil Jan. 10, 1933 21,025,577 Diehl Dec. 24, 19352,198,839 Pittman Apr. 30, 1940 2,289,929 Parkerl July 14, 19422,371,579 Cole Mar. 13, 1945 2,500,405 Fairbank Mar. 14, 1950 2,568,920Kinraide Sept. 25, 1951 2,584,043 Oberly Jan. 29, 1952

